公开(公告)号：US20240360303A1

公开(公告)日：2024-10-31

申请号：US18372294

申请日：2023-09-25

Applicant: SK Innovation Co., Ltd. ,  SK Geo Centric Co., Ltd.

Inventor： Sung Jae Na ,  Myung Jun Park ,  Hyo Seung Park ,  Jun Won Baek

IPC: C08L23/26 ,  C08F212/36 ,  C08F236/20 ,  C08K5/14 ,  C08L23/12

CPC classification number: C08L23/26 ,  C08F212/36 ,  C08F236/20 ,  C08K5/14 ,  C08L23/12

Abstract: Provided are a method of preparing a modified propylene-based polymer using a radical initiator in a solution state, and a modified propylene-based polymer prepared by the method. Since the modified propylene-based polymer prepared by the method according to some embodiments has less xylene soluble content and includes a long chain branch (LCB) uniformly, it may have improved processability and/or productivity.

公开(公告)号：US12037427B2

公开(公告)日：2024-07-16

申请号：US17277074

申请日：2019-09-26

Applicant: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.

Inventor： Masanao Kawabe ,  Tadashi Kuratomi ,  Shinichi Iwashita

IPC: C08F212/08 ,  B60C1/00 ,  C08F2/06 ,  C08F2/44 ,  C08F8/42 ,  C08F210/14 ,  C08F212/02 ,  C08F212/12 ,  C08F212/32 ,  C08F212/34 ,  C08F212/36 ,  C08F232/08 ,  C08F236/10 ,  C08F255/08 ,  C08F257/00 ,  C08F257/02 ,  C08F277/00 ,  C08F289/00 ,  C08K3/013 ,  C08K3/22 ,  C08L25/04 ,  C08L51/00 ,  C08L51/06 ,  C08K3/04 ,  C08K3/36

CPC classification number: C08F212/08 ,  B60C1/00 ,  C08F2/06 ,  C08F2/44 ,  C08F8/42 ,  C08F210/14 ,  C08F212/02 ,  C08F212/12 ,  C08F212/32 ,  C08F212/34 ,  C08F212/36 ,  C08F232/08 ,  C08F236/10 ,  C08F255/08 ,  C08F257/00 ,  C08F257/02 ,  C08F277/00 ,  C08F289/00 ,  C08K3/013 ,  C08K3/22 ,  C08L25/04 ,  C08L51/003 ,  C08L51/06 ,  C08K3/04 ,  C08K2003/2296 ,  C08K3/36 ,  Y02T10/86 ,  C08F232/08 ,  C08F212/36 ,  C08F212/12 ,  C08F257/02 ,  C08F236/10 ,  C08F212/08 ,  C08F210/14 ,  C08F212/36 ,  C08F212/12 ,  C08F212/08 ,  C08F255/08 ,  C08F236/10 ,  C08F212/08 ,  C08F277/00 ,  C08F236/10 ,  C08F212/08 ,  C08L51/003 ,  C08L91/00 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K3/36 ,  C08K5/09 ,  C08L51/06 ,  C08L91/00 ,  C08K3/04 ,  C08K3/22 ,  C08K5/09 ,  C08K3/06 ,  C08K3/36 ,  C08K3/04 ,  C08L51/06 ,  C08K3/36 ,  C08L51/06 ,  C08F210/14 ,  C08F212/08 ,  C08F212/36 ,  C08F212/12 ,  C08F2500/02 ,  C08F2500/32 ,  C08K3/22 ,  C08L51/06 ,  C08F212/36 ,  C08F232/08 ,  C08F212/08 ,  C08F212/36 ,  C08F210/14 ,  C08F212/32 ,  C08F212/36 ,  C08F212/12 ,  C08F212/32 ,  C08F4/14 ,  C08F212/12 ,  C08F4/14 ,  C08F212/36 ,  C08F4/14 ,  C08F212/08 ,  C08F4/14 ,  C08F289/00 ,  C08F236/06 ,  C08F212/08 ,  C08F257/02 ,  C08F236/06 ,  C08F212/08 ,  C08F212/08 ,  C08F210/14 ,  C08F212/36 ,  C08F212/12 ,  C08F210/14 ,  C08F4/14 ,  C08F255/08 ,  C08F236/06 ,  C08F212/08 ,  C08F232/08 ,  C08F212/12 ,  C08F212/36 ,  C08F212/08 ,  C08F212/36 ,  C08F212/12

Abstract: Provided is a polyfunctional vinyl aromatic copolymer having reactivity and solubility that can be used for manufacturing a copolymer rubber and a copolymer rubber material having processability, strength and homogeneity obtained therefrom. The polyfunctional vinyl aromatic copolymer includes: 0.5 mol % or more and 40 mol % or less of a structural unit (a) derived from a divinyl aromatic compound and 60 mol % or more and 99.5 mol % or less of a structural unit (b) derived from a monovinyl aromatic compound, in which at least some of the structural units (a) are a crosslinked structural unit (a2) represented by the following Formula (2) and a vinyl-group-containing structural unit (a1) represented by the following Formula (1):




in the formulas, R1's independently represent an aromatic hydrocarbon group having 6 to 30 carbon atoms.

公开(公告)号：US20240218152A1

公开(公告)日：2024-07-04

申请号：US18192466

申请日：2023-03-29

Applicant: Elite Material Co., Ltd.

Inventor： Chen-Yu HSIEH

IPC: C08K5/01 ,  C08F212/08 ,  C08F212/36 ,  C08J5/24 ,  C08L23/16

CPC classification number: C08K5/01 ,  C08F212/08 ,  C08F212/36 ,  C08J5/24 ,  C08L23/16 ,  C08J2323/16 ,  C08J2325/08 ,  C08L2203/16 ,  C08L2203/20

Abstract: A resin composition includes a first compound and a second compound, wherein: the first compound has a structure of Formula (1); the second compound comprises bis(vinylphenyl) ethane, divinylbenzene-ethylstyrene-styrene copolymer, ethylene-propylene-ethylidenenorbornene copolymer or a combination thereof; and a weight ratio of the first compound and the second compound is between 1:5 and 5:1. The resin composition may be used to make a prepreg, a resin film, a laminate or a printed circuit board, and at least one of the following properties can be improved, including varnish shelf life, temperature coefficient of dielectric constant, dielectric constant and solder floating thermal resistance of multi-layer board.

公开(公告)号：US11965089B2

公开(公告)日：2024-04-23

申请号：US16758839

申请日：2018-10-25

Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

Inventor： Wenbo Song ,  Hao Yuan ,  Zhenjie Liu ,  Jinliang Qiao ,  Shijun Zhang ,  Hua Yin ,  Huijie Hu ,  Qing Shao ,  Jie Zhang ,  Xiaomeng Zhang ,  Dezhan Li ,  Fuyong Bi

IPC: C08L67/02 ,  C08F212/08 ,  C08F212/36 ,  C08F222/06 ,  C08L35/06

CPC classification number: C08L67/02 ,  C08F212/08 ,  C08F212/36 ,  C08F222/06 ,  C08L35/06 ,  C08F2500/24 ,  C08F2810/20

Abstract: A microspheric ionomer having a cross-linked structure, a preparation method therefor, applications thereof, and a preparation system thereof. The ionomer comprises structure units A represented by formula (1), structure units B represented by formula (2), and a cross-linking structure provided by a cross-linking agent, M being separately selected from H, a metal cation, and a straight chain, a saturated alkyl of branched or ring-shaped C1-C20, R being H or a methyl; and metal cations are introduced to part of structure units A in the ionomer. The ionomer shows an outstanding effect on nucleation of PET, serves as a nucleating agent for PET modification, so as to obtain a corresponding PET composition. A system and method for continuously preparing maleic acid ester ionomer microspheres and cross-linked maleic acid ionomer microspheres, so as to achieve continuous preparation, washing and separation of ionomer microspheres, effectively stabilizes the separation effect, and avoids frequent start and stop operations of a centrifuge.

公开(公告)号：US20240002563A1

公开(公告)日：2024-01-04

申请号：US18344988

申请日：2023-06-30

Applicant: Kraton Corporation

Inventor： Jason Tian ,  Ruidong Ding ,  Vijay Mhetar ,  Chad Reiter ,  Donna Rucker

IPC: C08F212/36 ,  C08L25/18

CPC classification number: C08F212/36 ,  C08L25/18 ,  C08L2203/16 ,  C08L2203/20

Abstract: The disclosure relates to a curable polymer composition comprising (i) a copolymer of a diisoalkenylarene (DIAEA) and a divinylarene (DVA), and (ii) at least one anti-scorching agent. The copolymer has a solubility in a hydrocarbon solvent at 25° C. for a period of less than 4 hours of at least 10 wt. %, a glass transition temperature (Tg) of 50 to 300° C., and a Gel Content of less than 5 wt. %. The curable polymer composition is cured at a temperature of greater than 140° C. to obtain a cured polymer composition having a Gel Content in a hydrocarbon solvent of >90%, and low Dk and Df values. The curable polymer composition does not cross-link or has minimal premature cross-linking in steps such as processing, storage, etc., and can be used in copper clad lamination applications.

公开(公告)号：US20230374167A1

公开(公告)日：2023-11-23

申请号：US17664037

申请日：2022-05-18

Applicant: Canon Kabushiki Kaisha

Inventor： Fen Wan ,  Weijun Liu ,  Timothy Brian Stachowiak

IPC: C08F2/50 ,  C08F212/36 ,  C08K5/3417 ,  C08K5/13 ,  C08F222/10

CPC classification number: C08F2/50 ,  C08F212/36 ,  C08K5/3417 ,  C08K5/13 ,  C08F222/102

Abstract: A photocurable composition can comprise a polymerizable material and at least one photoinitiator, wherein the polymerizable material comprises a multi-functional vinylbenzene monomer in an amount of at least 30 wt % based on the total weight of the polymerizable material and the at least one photoinitiator includes an oxime ester compound. The photocurable composition can be adapted that a UV shrinkage after forming a photo-cured layer at 23° C. is not greater than 4.0%; and that a thermal shrinkage after conducting a baking treatment of the photo-cured layer at 350° C. is not greater than 3.5%.

公开(公告)号：US11815851B2

公开(公告)日：2023-11-14

申请号：US17213295

申请日：2021-03-26

Applicant: Xerox Corporation

Inventor： Richard Philip Nelson Veregin ,  Kimberly D. Nosella ,  Raysa Rodriguez Diaz ,  Cuong Vong ,  Sandra J. Gardner ,  Majid Kamel

IPC: G03G9/087 ,  G03G9/093 ,  G03G9/08 ,  C08F220/22 ,  C08F220/18 ,  C08F220/34 ,  C08F212/36 ,  C08K3/22 ,  G03G9/097

CPC classification number: G03G9/08728 ,  C08F212/36 ,  C08F220/1806 ,  C08F220/22 ,  C08F220/34 ,  C08K3/22 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/09321 ,  G03G9/09725 ,  C08K2003/2227 ,  C08K2003/2241

Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles having at least one resin, an optional colorant, an optional wax, and a crosslinked polymer particle on at least a portion of an external surface of the toner particles. The crosslinked polymeric particle on a surface of the toner particles includes at least a hydrophobic monomer comprising a non-fluorinated monomer having a carbon to oxygen (C/O) ratio of 3 or greater or a fluorinated monomer. The crosslinked polymer particle includes a second monomer comprising two or more vinyl groups present in an amount from about 8 wt % to about 40 wt % of the copolymer, a metal oxide and optionally a charge control agent monomer.

公开(公告)号：US20230287222A1

公开(公告)日：2023-09-14

申请号：US18015484

申请日：2021-07-13

Applicant: DENKA COMPANY LIMITED

Inventor： Toru ARAI

IPC: C09D4/06 ,  C09D123/08 ,  C08F210/02 ,  C08F210/14 ,  C08F212/08 ,  C08F212/36 ,  C08F4/6592 ,  C08F4/642 ,  C08F222/40 ,  C08K5/14 ,  C08L71/12 ,  H01B3/44

CPC classification number: C09D4/06 ,  C09D123/0838 ,  C09D123/0815 ,  C08F210/02 ,  C08F210/14 ,  C08F212/08 ,  C08F212/36 ,  C08F4/65927 ,  C08F4/6428 ,  C08F222/40 ,  C08K5/14 ,  C08L71/12 ,  H01B3/441 ,  H01B3/442 ,  C08L2312/00 ,  C08L2314/06 ,  C08L2203/20

Abstract: A varnish having low viscosity and a cured product thereof having a high degree of cross-linking, exhibiting excellent low dielectric properties and mechanical properties at high temperature, and a low coefficient of linear thermal expansion are provided. A varnish comprising an olefin-aromatic vinyl compound-aromatic polyene copolymerized oligomer satisfying specific conditions, one or more selected from the following (a) to (c), and (d) a solvent: (a) a curing agent; (b) one or a plurality of resins selected from a hydrocarbon-based elastomer, a polyphenylene ether-based resin, an olefin-aromatic vinyl compound-aromatic polyene copolymer, and an aromatic polyene-based resin; and (c) a polar monomer; and a cured product of the varnish.

公开(公告)号：US11667739B2

公开(公告)日：2023-06-06

申请号：US16648055

申请日：2018-09-21

Applicant: DDP SPECIALTY ELECTRONIC MATERIALS US 8, LLC

Inventor： Andrew M. Savo ,  John David Finch ,  Thomas Jones

IPC: C08F212/08 ,  C08F8/36 ,  B01J39/20 ,  C08F2/18

CPC classification number: C08F212/08 ,  B01J39/20 ,  C08F2/18 ,  C08F8/36 ,  C08F2800/20 ,  C08L2207/53 ,  C08F212/08 ,  C08F212/36 ,  C08F212/22

Abstract: Provided is a process of making polymeric beads comprising



(a) providing a suspension of monomer droplets in an aqueous medium at pH of 7 or less,

wherein the monomer droplets comprise one or more monofunctional vinyl monomers, one or more multifunctional vinyl monomers, and one or more initiators,
wherein the aqueous medium comprises one or more derivatives of a nitrite salt in an amount, by weight based on the weight of the aqueous medium, of 0.005% to 0.5%,


(b) initiating polymerization of the monomer,
wherein no pH-raising substance is added after beginning step (b) until 60% or more by weight of all monofunctional monomer has been converted to polymer.

公开(公告)号：US20230159683A1

公开(公告)日：2023-05-25

申请号：US17493966

申请日：2021-10-05

Applicant: Xerox Corporation

Inventor： Richard P. N. Veregin ,  Kimberly D. Nosella ,  Raysa Rodriguez Diaz ,  Nan-Xing Hu ,  Majid Kamel ,  Cuong Vong

IPC: C08F220/22 ,  C08F212/36 ,  C08F220/34 ,  C08F230/08 ,  G03G9/087

CPC classification number: C08F220/22 ,  C08F212/36 ,  C08F220/34 ,  C08F230/08 ,  G03G9/08728

Abstract: An organic polymeric particle including an optional first monomer comprising a hydrophobic monomer; a second monomer comprising two or more vinyl groups; an optional third monomer comprising an amine; and a vinyl siloxane polymerizable monomer.